JPH0399352U - - Google Patents
Info
- Publication number
- JPH0399352U JPH0399352U JP863890U JP863890U JPH0399352U JP H0399352 U JPH0399352 U JP H0399352U JP 863890 U JP863890 U JP 863890U JP 863890 U JP863890 U JP 863890U JP H0399352 U JPH0399352 U JP H0399352U
- Authority
- JP
- Japan
- Prior art keywords
- plate glass
- capacitive element
- capacitance
- determines whether
- change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005357 flat glass Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
は第１図のＡ−Ａ断面図、第３図は第１図の動作
を示すタイムチヤートである。
図中、１……板ガラス、１１，１２，１３……電
極、２０……アンプ、２１……発振器、２２……
反転回路、２３……比較器、３０……波形変換回
路、ＶＲ……基準電圧。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a time chart showing the operation of FIG. In the figure, 1... plate glass, 11, 12, 13... electrode, 20... amplifier, 21... oscillator, 22...
Inversion circuit, 23... comparator, 30... waveform conversion circuit, VR... reference voltage.
Claims (1)
素子を備えた板ガラスと、 該容量素子の容量変化を検出する検出手段と、
該検出手段により容量素子の容量値が変化したか
否かを判断し、該容量が変化に基づいて前記板ガ
ラスの破壊を判断する破壊判断手段とを具備する
ことを特徴とする板ガラスの破壊検出装置。[Claims for Utility Model Registration] A plate glass provided with a capacitive element consisting of a pair of opposing planar transparent electrodes, a detection means for detecting a change in capacitance of the capacitive element,
A fracture detection device for a plate glass, characterized in that the detection means determines whether or not the capacitance value of the capacitive element has changed, and the fracture determination means determines whether the plate glass is broken based on the change in the capacitance. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP863890U JPH0399352U (en) | 1990-01-30 | 1990-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP863890U JPH0399352U (en) | 1990-01-30 | 1990-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0399352U true JPH0399352U (en) | 1991-10-17 |
Family
ID=31512261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP863890U Pending JPH0399352U (en) | 1990-01-30 | 1990-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0399352U (en) |
-
1990
- 1990-01-30 JP JP863890U patent/JPH0399352U/ja active Pending